Table 4.
Pre- and postoperative radiographic measurements
| Measurement | Preoperative | Postoperative | Correction | p-value | 2-yr FU | % Correction at 2-yr FU | p-value |
|---|---|---|---|---|---|---|---|
| Max Cobb (°) | 65.7± 25.5 | 30.6±22.2 | −33.9±14.2 | 0.000 | 33.9±23.6 | 3.2±8.3 | 0.026 |
| Bending (°) | 56.1±28.2 | - | 11.2±16.5 | 0.000 | - | - | - |
| Traction (°) | 50.91±25.9 | - | 18.9±12.7 | 0.000 | - | - | - |
| Pelvic obliquity (°) | 12.34±16.88 | 6.54±10.14 | −3.5±10.2 | 0.017 | 6.3±8.7 | 0.3±6.8 | 0.772 |
| Apical vertebral rotation (°) | 18.9±12.5 | 10.5±11.1 | −7.5±13.1 | 0.000 | 11.2±10.7 | 1.1±8.7 | 0.461 |
| Lordosis cervical (°) | 13.74±13.5 | 17.6±17.0 | 1.7±15.2 | 0.405 | 14.5±13.6 | −5.2±16.3 | 0.041 |
| Thoracic kyphosis (°) | 41.0±28.5 | 34.1±17.46 | 8.4±24.5 | 0.015 | 33.8±19.57 | 0.9±9.3 | 0.507 |
| Lordosis lumbar (°) | 54.6±19.85 | 51.89±15.2 | −3.9±15.28 | 0.066 | 49.1±16.1 | −2.4±12.1 | 0.190 |
| Sacral slope (°) | 35.6±11.13 | 35.0±10.67 | −2.1±6.7 | 0.836 | 34.0±8.1 | 0.5±6.1 | 0.821 |
| Pelvic incidence (°) | 46.1±21.56 | 48.9±16.0 | −2.9±6.5 | 0.495 | 47.3±14.8 | −1.0±6.2 | 0.533 |
| Pelvic tilt (°) | 13.2±11.62 | 13.87±10.3 | −0.6±6.9 | 0.760 | 14.0±11.6 | 0.3±7.0 | 0.750 |
| Sagittal vertical axis (mm) | 26.75±39.3 | 28.8±46.5 | 2.4±59.8 | 0.766 | 34.0±39.8 | 5.1±50.0 | 0.493 |
| T9SPI (°) | 11.5±11.0 | 8.3±8.8 | −2.9±12.2 | 0.085 | 9.1±7.5 | −0.5±8.5 | 0.702 |
| T1SPI (°) | 2.0±6.8 | 3.4±7.0 | 1.3±7.9 | 0.206 | 5.1±5.1 | 1.7±8.8 | 0.303 |
Values are presented as mean±standard deviation. Bold type is considered statistically significant.
FU, follow-up; SPI, spino-pelvic inclination.